diskm8/drvprodos800.go
April Ayres-Griffiths 75d42c4597 initial commit
2018-01-20 11:05:04 +11:00

125 lines
2.3 KiB
Go

package main
import (
"crypto/sha256"
"encoding/hex"
"github.com/paleotronic/diskm8/disk"
"github.com/paleotronic/diskm8/loggy"
)
func analyzePRODOS800(id int, dsk *disk.DSKWrapper, info *Disk) {
l := loggy.Get(id)
// Sector bitmap
l.Logf("Reading Disk VTOC...")
vtoc, err := dsk.PRODOS800GetVDH(2)
if err != nil {
l.Errorf("Error reading VTOC: %s", err.Error())
return
}
info.Blocks = vtoc.GetTotalBlocks()
l.Logf("Blocks: %d", info.Blocks)
l.Logf("Reading sector bitmap and SHA256'ing sectors")
info.Bitmap = make([]bool, info.Blocks)
info.ActiveSectors = make(DiskSectors, 0)
activeData := make([]byte, 0)
vbitmap, err := dsk.PRODOS800GetVolumeBitmap()
if err != nil {
l.Errorf("Error reading volume bitmap: %s", err.Error())
return
}
l.Debug(vbitmap)
for b := 0; b < info.Blocks; b++ {
info.Bitmap[b] = !vbitmap.IsBlockFree(b)
if info.Bitmap[b] {
data, _ := dsk.PRODOS800GetBlock(b)
t, s1, s2 := dsk.PRODOS800GetBlockSectors(b)
sec1 := &DiskSector{
Track: t,
Sector: s1,
SHA256: dsk.ChecksumSector(t, s1),
}
sec2 := &DiskSector{
Track: t,
Sector: s2,
SHA256: dsk.ChecksumSector(t, s2),
}
if *ingestMode&2 == 2 {
sec1.Data = data[:256]
sec2.Data = data[256:]
}
info.ActiveSectors = append(info.ActiveSectors, sec1, sec2)
activeData = append(activeData, data...)
} else {
data, _ := dsk.PRODOS800GetBlock(b)
t, s1, s2 := dsk.PRODOS800GetBlockSectors(b)
sec1 := &DiskSector{
Track: t,
Sector: s1,
SHA256: dsk.ChecksumSector(t, s1),
}
sec2 := &DiskSector{
Track: t,
Sector: s2,
SHA256: dsk.ChecksumSector(t, s2),
}
if *ingestMode&2 == 2 {
sec1.Data = data[:256]
sec2.Data = data[256:]
}
info.InactiveSectors = append(info.InactiveSectors, sec1, sec2)
//activeData = append(activeData, data...)
}
}
sum := sha256.Sum256(activeData)
info.SHA256Active = hex.EncodeToString(sum[:])
info.LogBitmap(id)
// // Analyzing files
l.Log("Starting Analysis of files")
info.Files = make([]*DiskFile, 0)
prodosDir(id, 2, "", dsk, info)
exists := exists(*baseName + "/" + info.GetFilename())
if !exists || *forceIngest {
info.WriteToFile(*baseName + "/" + info.GetFilename())
} else {
l.Log("Not writing as it already exists")
}
out(dsk.Format)
}